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Updated: Jan 27, 2026

Demonstration of Cutaneous Allodynia in Association with Chronic Pelvic Pain
Published on: June 23, 2009
[The 469th case: multiple cutaneous abscesses, pelvic mass, and lung cavities]
X Y Cao1, J L Zhao1, Y Z Zhou1
1Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China.
Granulomatosis with polyangiitis (GPA) can mimic multiple abscesses. Early diagnosis using anti-proteinase 3 (PR3) antibodies and prompt treatment with immunosuppressants are crucial for managing this rare systemic vasculitis.
Area of Science:
- Rheumatology
- Internal Medicine
- Pathology
Background:
- Granulomatosis with polyangiitis (GPA) is a rare systemic vasculitis.
- Diagnosis can be challenging due to non-specific symptoms.
Observation:
- A 28-year-old female presented with a two-month history of multiple abscesses and a one-month history of fever.
- Clinical findings included widespread skin abscesses, pulmonary nodules/cavities, and a vesico-cervical fistula.
- Elevated inflammatory markers (ESR, CRP, ferritin) were noted, with pathological findings of necrosis and granuloma.
Findings:
- Infectious causes were ruled out.
- Diagnosis of GPA was confirmed by positive anti-proteinase 3 (PR3) antibody.
- Treatment with glucocorticoids and immunosuppressants led to significant symptom improvement.
Implications:
- This case highlights the importance of considering systemic vasculitis in the differential diagnosis of unexplained multiple abscesses.
- Early identification and management of GPA are essential for favorable patient outcomes.
- Highlights the diagnostic utility of PR3 antibodies in complex inflammatory conditions.
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